Radio communication method, terminal device, and network device

ABSTRACT

Provided are a wireless communication method, a terminal device, and a network device. The method includes that: a terminal device determines a first transmission format for transmitting data to be sent; and sends the data to a network device according to the first transmission format, where the first transmission format includes at least one of the followings: a first modulation manner, a first code rate, a first TBS, a first modulation coding level, or a first PRB size. The method further includes that, the terminal device determines the first transmission format according to at least one of: pre-configured multiple transmission formats; or a bearer of the data to be sent.

CROSS REFERENCE TO RELATED APPLICATIONS

This application is a continuation of U.S. Application No. 16/479,774filed on Jul. 22, 2019, which is a national phase under 35 U.S.C. § 371of PCT International Application No. PCT/CN2017/072287 filed on Jan. 23,2017. The contents of these applications are hereby incorporated byreference in their entirety.

TECHNICAL FIELD

The disclosure relates to the field of communication, and in particularto a wireless communication method, a terminal device and a networkdevice.

BACKGROUND

In a typical wireless communication network (such as a Long TermEvolution (abbreviated as “LTE”) network), selection of uplink shareddata channels is based on a scheduling/grant mechanism and is completelycontrolled by a Base Station (abbreviated as “BS”). In this mechanism,User Equipment (abbreviated as “UE”) first sends an uplink schedulingrequest to the BS. After the request is received, the BS sends an uplinkGrant to the UE to notify the UE of uplink transmission resourcesallocated to the UE. Then, the UE performs data transmission on thegranted uplink transmission resources.

Large-scale user access is one of typical application scenarios in anext generation of communication network. When massive users areaccessed, usage of the above scheduling/grant mechanism will cause, onone hand, the huge signaling transmission overhead and the schedulingpressure of the BS for resource allocation and on the other hand, thesignificant transmission delay. In view of this, a grant freetransmission manner will be employed by the next generation ofcommunication network to support the access of the massive users.

Therefore, implementation of grant free transmission is an urgentproblem to be solved.

SUMMARY

A first aspect provides a wireless communication method, which mayinclude the following operations.

A terminal device determines a first transmission format for sendingdata to be sent; and sends the data to a network device according to thefirst transmission format, where the first transmission format includesat least one of the followings: a first modulation manner, a first coderate, a first transport block size (TBS), a first modulation codinglevel or a first physical resource block (PRB) size. The terminal devicedetermines the first transmission format for sending the data accordingto at least one of: pre-configured multiple transmission formats; or thebearer of the data to be sent.

A second aspect provides a terminal device, which may include aprocessor and a transceiver. The processor is configured to determine afirst transmission format for sending data to be sent, and thetransceiver is configured to send the data to a network device accordingto the first transmission format, where the first transmission formatincludes at least one of the followings: a first modulation manner, afirst code rate, a first TBS, a first modulation coding level or a firstPRB size. The processor is further configured to determine the firsttransmission format according to at least one of: pre-configuredmultiple transmission formats, or the bearer of the data to be sent. Athird aspect provides a network device, which may include a processorand a transceiver. The processor is configured to determine a firsttransmission format for receiving data to be received, and thetransceiver is configured to receive, according to the firsttransmission format, the data sent by a terminal device.

BRIEF DESCRIPTION OF DRAWINGS

In order to describe the technical solutions in the embodiments of thedisclosure more clearly, the drawings required to be used indescriptions about the embodiments or a conventional art will be simplyintroduced below. It is apparent that the drawings described below areonly some embodiments of the disclosure. Other drawings may further beobtained by those of ordinary skill in the art according to thesedrawings without creative work.

FIG. 1 illustrates a schematic diagram of a wireless communicationsystem according to an embodiment of the disclosure.

FIG. 2 illustrates a schematic flowchart diagram of a wirelesscommunication method according to an embodiment of the disclosure.

FIG. 3 illustrates a schematic flowchart diagram of a wirelesscommunication method according to an embodiment of the disclosure.

FIG. 4 illustrates a schematic block diagram of a terminal deviceaccording to an embodiment of the disclosure.

FIG. 5 illustrates a schematic block diagram of a network deviceaccording to an embodiment of the disclosure.

FIG. 6 illustrates a schematic block diagram of a communication deviceaccording to an embodiment of the disclosure.

FIG. 7 illustrates a schematic block diagram of a system chip accordingto an embodiment of the disclosure.

DETAILED DESCRIPTION

The technical solutions in the embodiments of the disclosure will bedescribed below in combination with the accompanying drawings in theembodiments of the disclosure. It is apparent that the embodimentsdescribed below are not all embodiments but part of embodiments of thedisclosure. All other embodiments obtained by those of ordinary skill inthe art based on the embodiments in the disclosure without creative workshall fall within the scope of protection of the disclosure.

The terms “component”, “module”, “system” and the like are used hereinfor indicating a computer associated entity, hardware, firmware,hardware, a combination of hardware and software, software or softwarebeing executed. For example, the component may be, but not limited to, aprogress run on a processor, a processor, an object, an executable file,a thread of execution, a program, and/or a computer. By way ofillustration, both an application run on a computing device and thecomputing device may be the components. One or more components mayreside within a process and/or thread of execution and a component maybe localized on one computer and/or distributed between two or morecomputers. Besides, these components may be executed from variouscomputer readable media storing various data structures thereon. Thecomponents may be, for example, communicated via a local and/or remoteprogress according to a signal having one or more data packets (forexample, data from two components interacted with another component of alocal system, a distributive system and/or a network, and for example,an internet interacted with other systems via a signal).

The technical solutions in the embodiments of the disclosure may beapplied in various communications systems, such as a Global System ofMobile communication (abbreviated as “GSM”) system, a Code DivisionMultiple Access (abbreviated as “CDMA”) system, a Wideband Code DivisionMultiple Access (abbreviated as “WCDMA”) system, a Long Term Evolution(abbreviated as “LTE”) system, an LTE Frequency Division Duplex(abbreviated as “FDD”) system, an LTE

Time Division Duplex (abbreviated as “TDD”) system, a Universal MobileTelecommunication System (abbreviated as “UMTS”) system and a future 5Gcommunication system, etc.

Each embodiment is described in the disclosure in combination with aterminal device. The terminal device may also be User Equipment(abbreviated as “UE”), an access terminal, a user unit, a user station,a mobile station, a mobile platform, a remote station, a remoteterminal, a mobile device, a user terminal, a terminal, a wirelesscommunication device and a user proxy or user apparatus. The accessterminal may be a cellular phone, a cordless telephone, a SessionInitiation Protocol (abbreviated as “SIP ”) phone, a Wireless Local Loop(abbreviated as “WLL”) station, a Personal Digital Assistant(abbreviated as “PDA”), a handheld device having a wirelesscommunication function, a computing device or other processing devicesconnected to a wireless modem, vehicle-mounted devices and wearabledevices, a terminal device in a future 5G network or a terminal devicein a future evolved Public Land Mobile Network (PLMN) network, etc.

Each embodiment is described in the disclosure in combination with anetwork device. The network device may be a device used forcommunicating with the terminal device, and may be, for example, a BaseTransceiver Station (abbreviated as “BTS”) in a GSM or CDMA, may also bea NodeB (abbreviated as “NB”) in a WCDMA system, and may further be anEvolutional NodeB (abbreviated as “eNB” or “eNodeB”) in an LTE system;or the network device may be a relay station, an access point, avehicle-mounted device, a wearable device, a network side device in thefuture 5G system or a network side device in the future evolved PLMNnetwork, etc.

Due to a great number of connections, there is a significant differencebetween a future wireless communication system and an existingcommunication system. The great number of connections need moreresources to access a UE and more resources to transmit schedulingsignaling relevant to data transmission of the terminal device.Embodiments of the disclosure provide a wireless communication method, aterminal device and a network device, which can achieve determination ofa transmission format in a non-scheduling manner by the terminal deviceand implement the grant free transmission.

FIG. 1 illustrates a schematic architecture diagram of a wirelesscommunication system according to an embodiment of the disclosure. Asillustrated in

FIG. 1, the wireless communication system 100 may include a networkdevice 102 and terminal devices 104-114 (abbreviated as UEs in FIG. 1),which are connected via a wireless connection or a wired connection orother manners.

The network in this embodiment of the disclosure may be a Public LandMobile Network (abbreviated as “PLMN”) or a Device to Device (D2D)network or a Machine to Machine/Man (M2M) network or other networks.FIG. 1 is a simplified schematic diagram for example. The network mayfurther include other network devices, which is not illustrated in FIG.1.

The disclosure provides a solution of grant free transmission. The grantfree transmission may be applied for a lot of MTC services in a futurenetwork, and meet the requirement of the service transmission on lowtime delay and high reliability. The grant free transmission may bedirected for uplink data transmission. It is known by those skilled inthe art that the grant free transmission may also be referred to othernames such as spontaneous access. The UL grant free transmission may beunderstood as any one of the following meanings, or multiple meanings,or a combination of a part of technical features in the multiplemeanings.

1. The grant free transmission may indicate that multiple transmissionresources are pre-allocated by a network device and are notified to aterminal device; when the terminal device needs to perform an uplinkdata transmission, the terminal device selects at least one transmissionresource from the multiple transmission resources pre-allocated by thenetwork device, and perform transmission of uplink data via the selectedtransmission resource. The network device detects the uplink data sentby the terminal device on one or more transmission resources of themultiple transmission resources pre-allocated by the network device. Thedetection may be a blind detection, and may also be performed accordingto a control domain in the uplink data, or performed in other manners.

2. The grant free transmission may indicate that multiple transmissionresources are pre-allocated by a network device and are notified to aterminal device, such that when the terminal device needs to perform anuplink data transmission, the terminal device selects at least onetransmission resource from the multiple transmission resourcespre-allocated by the network device, and perform transmission of uplinkdata via the selected transmission resource.

3. The grant free transmission may indicate that information on multipletransmission resources pre-allocated is acquired; and when an uplinkdata transmission is required, at least one transmission resource isselected from the multiple transmission resources, and the selectedtransmission resource is used to send the uplink data. The informationmay be acquired from a network device.

4. The grant free transmission may indicate a method that can implementuplink data transmission of a terminal device without dynamic schedulingof a network device. The dynamic scheduling may refer to a schedulingmanner in which the network device instructs a transmission resource forthe terminal device via signaling at each time of uplink datatransmission. In at least one example, the uplink data transmission ofthe terminal device may be understood as uplink data transmission thatdata of two or more terminal devices are allowed to be transmitted on asame time-frequency resource. In at least one example, the transmissionresource may be a transmission resource within one or more transmissiontime units after the time when the UE receives the signaling. Each ofthe transmission time units may be a minimum time unit for transmissionat one time such as a Transmission Time Interval (abbreviated as “TTI”),with a value of 1 ms, or may be a preset transmission time unit

5. The grant free transmission may indicate uplink data transmission ofa terminal device without a grant of a network device. The grant mayrefer to that the terminal device sends an uplink scheduling request tothe network device, and upon the reception of the scheduling request,the network device sends an uplink grant to the terminal device. Theuplink grant indicates one or more uplink transmission resourcesallocated to the terminal device.

6. The grant free transmission may indicate a contention transmissionmanner. Specifically, it may refer to that multiple terminals performuplink data transmission simultaneously on same time frequency resourcesallocated in advance without a grant of a BS.

The data may include service data or signaling data.

The blind detection may be understood as detection performed on datathat is possibly reached, without knowing whether the data are reached.The blind detection may also be understood as detection without theindication of explicit signaling.

The transmission resource may include, but not limited to, one or morecombinations of the following resources: a time-domain resource, such asa wireless frame, a subframe and a symbol; a frequency-domain resource,such as a sub-carrier and a resource block; a space-domain resource,such as a transmitting antenna and a beam; a code-domain resource, suchas a Sparse Code Multiple Access (abbreviated as “SOMA”) code group, aLow Density Signature (abbreviated as “LDS”) group and a CDMA codegroup; and an uplink pilot frequency resource.

The above-mentioned transmission resource may be transmitted accordingto a control mechanism including but not limited to the followings:uplink power control, such as upper limit control of an uplink transmitpower; Modulation Coding Scheme (MCS) setting, such as Transport BlockSize (TBS), code rate and modulation order setting; and a retransmissionmechanism, such as a Hybrid Automatic Retransmission Request (HARQ)mechanism

The embodiment in FIG. 1 is described with the example in which thenetwork device is a base station. The network device may also be otheraccess devices (such as a wireless access point).

In order to understand the disclosure more clearly, the solutionsaccording the embodiments of the disclosure will be described below incombination with FIG. 2 to FIG. 7.

FIG. 2 illustrates a schematic flowchart of a wireless communicationmethod 200 according to an embodiment of the disclosure. In at least oneembodiment, the method 200 is applied in the grant free transmission.

As illustrated in FIG. 2, the method 200 may include the followingoperations.

At 210, a terminal device determines a first transmission format forsending data to be sent.

In at least one embodiment, the first transmission format includes atleast one of the followings: a first modulation manner, a first coderate, a first TBS, a first modulation coding level or a first physicalresource block (PRB) size.

For example, the first transmission format only includes one of thefirst modulation manner, the first code rate, the first TBS, the firstmodulation coding level and the first PRB size.

For example, the first transmission format may include the firstmodulation manner and the first code rate.

For example, the first transmission format may include the firstmodulation manner and the first code rate, and further include at leastone of the first TBS, the first modulation coding level or the first PRBsize.

For example, the first transmission format may include the firstmodulation coding level, and further include at least one of the firstTBS, the first modulation coding level or the first PRB size.

For example, the first transmission format may include the first TBS andthe first PRB size.

In at least one embodiment, the terminal device determines the firsttransmission format according to at least one of the followings:

pre-configured multiple transmission formats, and each pre-configuredtransmission format may include at least one of a modulation manner, acode rate, a TBS, a modulation coding level or a PRB size;

a data amount of the data to be sent;

a present downlink quality;

a quality of service (QoS) requirement of the data to be sent, such as adelay requirement;

a bearer of the data to be sent;

a data stream of the data to be sent;

a pre-configured position of an uplink available resource;

a pre-configured size of an uplink available resource, a pre-configuredreference code rate, and the number of bits capable of being carried bya unit uplink resource ; or

a maximum available transmit power of the terminal device fortransmission of the data to be sent.

In at least one embodiment, the terminal device receives configurationinformation of the network device, and the configuration information isto indicate at least one of the followings:

the pre-configured multiple transmission formats;

the pre-configured position of the uplink available resource;

the pre-configured size of the uplink available resource; or

the pre-configured reference code rate of the uplink data.

In at least one embodiment, the terminal device receives theconfiguration information sent by the network device via Radio ResourceControl (RRC) layer signaling, Media Access Control (MAC) layersignaling or physical layer signaling.

In order to understand the disclosure more clearly, the manner in whichthe terminal device determines the first transmission format will bedescribed below in combination with several implementations. p In oneimplementation, at least one TBS is determined according topre-configured multiple TBSs and the data amount of the data to be sent,and the at least one TBS includes a TBS, more than the data amount ofthe data to be sent, in the multiple TBSs. A minimum TBS of the at leastone TBS is determined as the first TBS included in the firsttransmission format.

In one implementation, at least one TBS is determined according topre-configured multiple TBSs and the data amount of the data to be sentand the at least one TBS includes a TBS, less than the data amount ofthe data to be sent, in the multiple TBSs. A maximum TBS of the at leastone TBS is determined as a first TBS included in the first transmissionformat.

In one implementation, the first TBS included in the first transmissionformat is determined according to the pre-configured size of the uplinkavailable resource, the pre-configured reference code rate, and thenumber of bits capable of being carried by a unit uplink resource.

The unit uplink resource may be, but not limited to, a resource sizedetermined by a unit time-domain resource, a unit frequency-domainresource and a unit space-domain resource.

The unit time-domain resource may be a frame, a subframe, a time slot ora symbol. The size of the uplink available resource may include thenumber of unit time-domain resources, such as the number of frames, thenumber of subframes, the number of time slots or the number of symbols.

The unit frequency-domain resource may be a Resource Block (RB) or an RBgroup, etc. The size of the uplink available resource may include thenumber of unit frequency-domain resources, such as the number of RBs orthe number of RB groups.

The unit space-domain resource may be a transmitting beam and the like.The size of the uplink available resource may include the number of unitspace-domain resources, such as the number of transmitting beams.

In at least one embodiment, the number of bits capable of being carriedby the unit uplink resource includes the number of bits that can becarried by a unit uplink resource corresponding to each of the multiplemodulation manners. The terminal device determines a TBS correspondingto each modulation manner according to the size of the uplink availableresource, the reference code rate and the number of bits that can becarried by the unit uplink resource corresponding to each modulationmanner According to TBSs corresponding to the multiple modulationmanners, the terminal device determines a first TBS included in thefirst transmission format, and determines a first modulation manner or afirst modulation coding level included in the first transmission format.

For example, a maximum TBS of the TBSs corresponding to the multiplemodulation manners is determined as the first TBS.

A modulation manner corresponding to the first TBS is determined as thefirst modulation manner, or a modulation coding level to which themodulation manner corresponding to the first TBS belongs is determinedas the first modulation coding level.

For example, at least one TBS that is more than the data amount of thedata to be sent is determined from the TBSs corresponding to themultiple modulation manners. A minimum TBS of the at least one TBS isdetermined as the first TBS. A modulation manner corresponding to thefirst TBS is determined as the first modulation manner, or a modulationcoding level to which the modulation manner corresponding to the firstTBS belongs is determined as the first modulation coding level.

For example, a transmit power at each TBS corresponding to respectivemodulation manner is calculated. According to the transmit power at theTBS corresponding to each modulation manner, the first TBS is determinedand the first modulation manner or the first modulation coding level isdetermined.

In at least one embodiment, there may be multiple implementations fordetermining the first TBS and determining the first modulation manner orthe first modulation coding level according to the transmit power at theTBS corresponding to each modulation manner

For example, a transmit power corresponding to the first modulationmanner or a modulation manner included in the first modulation codinglevel is a minimum transmit power of transmit powers corresponding tothe multiple modulation manners; and/or the transmit power correspondingto the first modulation manner or the modulation manner included in thefirst modulation coding level is less than a maximum available transmitpower of the terminal device for transmission of the data to be sent.

For example, according to the transmit power at the TBS corresponding toeach modulation manner and the TBS corresponding to each modulationmanner, the first TBS is determined and the first modulation manner orthe first modulation coding level is determined.

Specifically, a combination of transmit power and TBS, both of which arewithin a range, may be selected; or the transmit power and the TBS maybe converted in the same unit and weighed processing, and a combinationof the transmit power and the TBS may be selected according to theobtained value.

In one implementation, the terminal device determines the firsttransmission format according to a present downlink quality and a firstcorrespondence. The first correspondence is to indicate a correspondencebetween multiple transmission formats and multiple downlink qualityranges.

In one implementation, the terminal device determines the firsttransmission format according to a data stream of the data to be sentand a second correspondence. The second correspondence is to indicate acorrespondence between multiple transmission formats and multiple datastreams.

In one implementation, the terminal device determines the firsttransmission format according to a bearer of the data to be sent and athird correspondence. The third correspondence is to indicate acorrespondence between multiple transmission formats and multiplebearers.

In one implementation, the terminal device determines the firsttransmission format according to a pre-configured position of theavailable resource for transmitting uplink data and a fourthcorrespondence. The fourth correspondence is to indicate acorrespondence between multiple transmission formats and multipleposition ranges of uplink resources.

In one implementation, the terminal device determines the firsttransmission format according to a QoS requirement of the data to besent and a QoS requirement capable of being met by each of the multipletransmission formats.

In at least one embodiment in the disclosure, the terminal devicedetermines a first TBS included in the first transmission format.

According to the first TBS, a transmit power corresponding to each ofthe pre-configured multiple modulation manners is calculated.

According to the transmit power corresponding to each modulation manner,a first modulation manner or a first modulation coding level included inthe first transmission format is determined.

In at least one embodiment, a transmit power corresponding to the firstmodulation manner or a modulation manner included in the firstmodulation coding level is a minimum transmit power of transmit powerscorresponding to the multiple modulation manners; and/or, the transmitpower corresponding to the first modulation manner or the modulationmanner included in the first modulation coding level is less than amaximum available transmit power of the terminal device for transmissionof the data to be sent.

At 220, the terminal device sends the data to be sent to a networkdevice according to the first transmission format.

In at least one embodiment, the terminal device sends first indicationinformation to the network device. The first indication information isto indicate the first transmission format.

In one implementation, the terminal device sends the first indicationinformation to the network device via a data channel for transmission ofthe data to be sent.

In another implementation, the terminal device sends the firstindication information to the network device on a pre-configuredresource for transmission of indication information of a transmissionformat.

In at least one embodiment, the pre-configured resource is a dedicatedresource of the terminal device.

Alternatively, the pre-configured resource is a resource shared bymultiple terminal devices, and the indication information furthercarries an identifier of the terminal device.

FIG. 3 illustrates a schematic flowchart of a wireless communicationmethod 300 according to an embodiment of the disclosure. As illustratedin FIG. 3, the method 300 may include the following operations.

At 310, a network device determines a first transmission format forreceiving data to be received.

In at least one embodiment, the terminal device may be a terminal devicein an inactive state.

In at least one embodiment, the first transmission format includes atleast one of the followings: a first modulation manner, a first coderate, a first TBS, a first modulation coding level, or a first PRB size.

In at least one embodiment, the network device may determine the firsttransmission format according to a resource position for carrying thedata to be received.

In at least one embodiment, the network device receives first indicationinformation sent by the network device, and the first indicationinformation is to indicate the first transmission format. The networkdevice determines the first transmission format according to the firstindication information.

In one implementation, the network device receives the first indicationinformation sent by the terminal device via a data channel fortransmission of the data to be received.

In one implementation manner, the network device receives the firstindication information sent by the terminal device on a pre-configuredresource for transmission of indication information of a transmissionformat.

In at least one embodiment, the pre-configured resource is a dedicatedresource of the terminal device.

Alternatively, the pre-configured resource is a resource shared bymultiple terminal devices, and the indication information furthercarries an identifier of the terminal device.

At 320, the network device receives the data to be received sent by aterminal device according to the first transmission format.

In at least one embodiment, the network device sends configurationinformation to enable a receiver to select a transmission format fortransmitting uplink data. The receiver includes the terminal device. Theconfiguration information is to indicate at least one of the followings:

pre-configured multiple transmission formats;

a pre-configured position of an uplink available resource;

a pre-configured size of the uplink available resource; or

a pre-configured reference code rate of the uplink data.

Therefore, in this embodiment of the disclosure, the terminal devicedetermines the first transmission format for sending the data.

The terminal device sends the data to the network device according tothe first transmission format.

The wireless communication method according to the embodiments of thedisclosure has been described above in combination with FIG. 1 to FIG.3. A device for implementing the wireless communication method in theembodiments of the disclosure will be described below in combinationwith FIG. 4 to FIG. 7.

FIG. 4 illustrates a schematic block diagram of a terminal device 400according to an embodiment of the disclosure. As illustrated in FIG. 4,the terminal device 400 may include a processing unit 410 and atransceiving unit 420.

The processing unit 410 is configured to determine a first transmissionformat for sending data to be sent. The transceiving unit 420 isconfigured to send the data to be sent to a network device according tothe first transmission format.

In at least one embodiment, the first transmission format includes atleast one of the followings: a first modulation manner, a first coderate, a first TBS, a first modulation coding level, or a first PRB size.

In at least one embodiment, the transceiving unit 420 is furtherconfigured to send first indication information to the network device.The first indication information is to indicate the first transmissionformat.

In at least one embodiment, the transceiving unit 420 is furtherconfigured to send the first indication information to the networkdevice via a data channel for transmission of the data to be sent.

In at least one embodiment, the transceiving unit 420 is furtherconfigured to send the first indication information to the networkdevice on a pre-configured resource for transmission of indicationinformation of a transmission format.

In at least one embodiment, the pre-configured resource is a dedicatedresource of the terminal device.

Alternatively, the pre-configured resource is a resource shared bymultiple terminal devices, and the indication information furthercarries an identifier of the terminal device.

In at least one embodiment, the processing unit 410 is furtherconfigured to determine the first transmission format according to atleast one of the followings:

pre-configured multiple transmission formats;

a data amount of the data to be sent;

a present downlink quality;

a QoS requirement of the data to be sent;

a bearer of the data to be sent;

a data stream of the data to be sent;

a pre-configured position of an uplink available resource;

a pre-configured size of an uplink available resource, a pre-configuredreference code rate, and the number of bits capable of being carried bya unit uplink resource; and

a maximum available transmit power of the terminal device fortransmission of the data to be sent.

In at least one embodiment, the processing unit 410 is furtherconfigured to determine at least one TBS according to pre-configuredmultiple TBSs and the data amount of the data to be sent, and determinea minimum TBS of the at least one TBS as a first TBS included in thefirst transmission format. The at least one TBS includes a TBS, morethan the data amount of the data to be sent, in the multiple TBSs.

In at least one embodiment, the processing unit 410 is furtherconfigured to determine at least one TBS according to pre-configuredmultiple TBSs and the data amount of the data to be sent, and determinea maximum TBS of the at least one TBS as a first TBS included in thefirst transmission format. The at least one TBS includes a TBS, lessthan the data amount of the data to be sent, in the multiple TBSs;

In at least one embodiment, the processing unit 410 is furtherconfigured to determine a first TBS included in the first transmissionformat according to the pre-configured size of the uplink availableresource, the pre-configured reference code rate, and the number of bitscapable of being carried by the unit uplink resource.

In at least one embodiment, the processing unit 410 is furtherconfigured to determine a first TBS included in the first transmissionformat; calculate, according to the first TBS, a transmit powercorresponding to each of the pre-configured multiple modulation manners;and determine, according to the transmit power corresponding to eachmodulation manner, a first modulation manner or a first modulationcoding level included in the first transmission format.

In at least one embodiment, the transmit power corresponding to thefirst modulation manner or the modulation manner included in the firstmodulation coding level may be at least one of the followings. Thetransmit power corresponding to the first modulation manner or themodulation manner included in the first modulation coding level is aminimum transmit power of transmit powers corresponding to the multiplemodulation manners, or the transmit power corresponding to the firstmodulation manner or the modulation manner included in the firstmodulation coding level is less than a maximum available transmit powerof the terminal device for transmission of the data to be sent.

In at least one embodiment, the number of bits capable of being carriedby the unit uplink resource includes the number of bits capable of beingcarried by a unit uplink resource corresponding to each of the multiplemodulation manners.

The processing unit 410 is further configured to determine a TBScorresponding to each modulation manner according to the size of theuplink available resource, the reference code rate and the number ofbits capable of being carried by the unit uplink resource correspondingto each modulation manner, determine, according to TBSs corresponding tothe multiple modulation manners, a first TBS included in the firsttransmission format, and determine a first modulation manner or a firstmodulation coding level included in the first transmission format.

In at least one embodiment, the processing unit 410 is furtherconfigured to determine a maximum TBS of the TBSs corresponding to themultiple modulation manners as the first TBS; and determine a modulationmanner corresponding to the first TBS as the first modulation manner, ordetermine a modulation coding level to which the modulation mannercorresponding to the first TBS belongs as the first modulation codinglevel.

In at least one embodiment, the processing unit 410 is furtherconfigured to determine at least one TBS more than the data amount ofthe data to be sent from the TBSs corresponding to the multiplemodulation manners, determine a minimum TBS of the at least one TBS asthe first TBS, and determine a modulation manner corresponding to thefirst TBS as the first modulation manner, or determine a modulationcoding level to which the modulation manner corresponding to the firstTBS belongs as the first modulation coding level.

In at least one embodiment, the processing unit 410 is furtherconfigured to calculate a transmit power at a TBS corresponding to eachmodulation manner; and determine, according to the transmit power at theTBS corresponding to each modulation manner, the first TBS, anddetermine the first modulation manner or the first modulation codinglevel.

In at least one embodiment, the transmit power corresponding to thefirst modulation manner or the modulation manner included in the firstmodulation coding level is a minimum transmit power in transmit powerscorresponding to the multiple modulation manners; and/or, the transmitpower corresponding to the first modulation manner or the modulationmanner included in the first modulation coding level is less than amaximum available transmit power of the terminal device for transmissionof the data to be sent.

In at least one embodiment, the processing unit 410 is furtherconfigured to determine, according to the transmit power at the TBScorresponding to each modulation manner and the TBS corresponding toeach modulation manner, the first TBS, and determine the firstmodulation manner or the first modulation coding level.

In at least one embodiment, the processing unit 410 is furtherconfigured to determine the first transmission format according to apresent downlink quality and a first correspondence. The firstcorrespondence is to indicate a correspondence between multipletransmission formats and multiple downlink quality ranges.

In at least one embodiment, the processing unit 410 is furtherconfigured to determine the first transmission format according to adata stream of the data to be sent and a second correspondence. Thesecond correspondence is to indicate a correspondence between multipletransmission formats and multiple data streams.

In at least one embodiment, the processing unit 410 is furtherconfigured to determine the first transmission format according to abearer of the data to be sent and a third correspondence. The thirdcorrespondence is to indicate a correspondence between multipletransmission formats and multiple bearers.

In at least one embodiment, the processing unit 410 is furtherconfigured to determine the first transmission format according to apre-configured position of the available resource for transmittinguplink data and a fourth correspondence. The fourth correspondence is toindicate a correspondence between multiple transmission formats andmultiple position ranges of uplink resources.

In at least one embodiment, the processing unit 410 is furtherconfigured to determine the first transmission format according to a QoSrequirement of the data to be sent and a QoS requirement capable ofbeing met by each of the multiple transmission formats.

In at least one embodiment, the transceiving unit 420 is furtherconfigured to receive configuration information of the network device.The configuration information is used for indicating at least one of thefollowings:

the pre-configured multiple transmission formats;

the pre-configured position of the uplink available resource;

the pre-configured size of the uplink available resource; or

the pre-configured reference code rate of the uplink data.

In at least one embodiment, the transceiving unit 420 is furtherconfigured to receive the configuration information sent by the networkdevice via RRC layer signaling, MAC layer signaling or physical layersignaling.

In at least one embodiment, the terminal device 400 is used in grantfree transmission.

In at least one embodiment, the terminal device 400 is a terminal devicein an inactive state.

The terminal device 400 may correspond to the terminal device in themethod 200 and may implement corresponding functions implemented by theterminal device in the method 200, which will not be repeated herein forbriefness.

FIG. 5 illustrates a schematic block diagram of a network device 500according to an embodiment of the disclosure. As illustrated in FIG. 5,the network device 500 may include a processing unit 510 and atransceiving unit 520.

The processing unit 510 is configured to determine a first transmissionformat for receiving data to be received. The transceiving unit 520 isconfigured to receive the data to be received sent by a terminal deviceaccording to the first transmission format.

In at least one embodiment, the first transmission format includes atleast one of the followings: a first modulation manner, a first coderate, a first TBS, a first modulation coding level, or a first PRB size.

In at least one embodiment, the transceiving unit 520 is furtherconfigured to receive first indication information sent by the terminaldevice. The first indication information is used for indicating thefirst transmission format.

The processing unit 510 is further configured to determine the firsttransmission format according to the first indication information.

In at least one embodiment, the transceiving unit 520 is furtherconfigured to receive the first indication information sent by theterminal device via a data channel for transmission of the data to bereceived.

In at least one embodiment, the transceiving unit 520 is furtherconfigured to receive the first indication information sent by theterminal device on a pre-configured resource for transmission ofindication information of a transmission format.

In at least one embodiment, the pre-configured resource is a dedicatedresource of the terminal device.

Alternatively, the pre-configured resource is a resource shared bymultiple terminal devices, and the indication information furthercarries an identifier of the terminal device.

In at least one embodiment, the transceiving unit 520 is furtherconfigured to send configuration information, to enable a receiver toselect a transmission format for transmitting uplink data. The receiverincludes the terminal device. The configuration information is used forindicating at least one of the followings:

pre-configured multiple transmission formats;

a pre-configured position of an uplink available resource;

a pre-configured size of the uplink available resource; or

a pre-configured reference code rate of the uplink data.

In at least one embodiment, the network device is used in grant freetransmission.

In at least one embodiment, the terminal device is a terminal device inan inactive state.

The network device 500 may correspond to the network device in themethod 300 and may implement corresponding functions implemented by thenetwork device in the method 300, which will not be repeated herein forbriefness.

FIG. 6 illustrates a schematic block diagram of a communication device600 according to an embodiment of the disclosure. As illustrated in FIG.6, the device 600 may include a processor 610 and a memory 620. Thememory 620 may store a program code. The processor 610 may execute theprogram code stored in the memory 620.

In at least one embodiment, as illustrated in FIG. 6, the device 600 mayinclude a transceiver 630. The processor 610 may control the transceiver630 for external communication.

In at least one embodiment, the processor 610 may invoke the programcode stored in the memory 620 to execute the corresponding operations ofthe terminal device in the method 200 illustrated in FIG. 2, which willnot be repeated herein for briefness.

In at least one embodiment, the processor 610 may invoke the programcode stored in the memory 620 to execute the corresponding operations ofthe network device in the method 300 illustrated in FIG. 3, which willnot be repeated herein for briefness.

FIG. 7 illustrates a schematic diagram of a system chip according to anembodiment of the disclosure. The system chip 700 in FIG. 7 may includean input interface 701, an output interface 702, a processor 703 and amemory 704 that are connected via an internal connection line. Theprocessor 703 is configured to execute a code in the memory 704.

In at least one embodiment, when the code is executed, the processor 703implements the operations executed by the terminal device in the method200 illustrated in FIG. 2, which will not be repeated herein forbriefness.

In at least one embodiment, when the code is executed, the processor 703implements the operations executed by the network device in the method300 illustrated in FIG. 3, which will not be repeated herein forbriefness.

Those skilled in the art may clearly learn about that specific workingprocesses of the system, device and unit described above may refer tothe corresponding processes in the method embodiment and will not beelaborated herein for convenient and brief description.

In some embodiments provided by the disclosure, it is to be understoodthat the disclosed system, device and method may be implemented inanother manner. For example, the device embodiment described above isonly schematic, and for example, division of the units is only logicfunction division, and other division manners may be adopted duringpractical implementation. For example, multiple units or components maybe combined or integrated into another system, or some characteristicsmay be neglected or not executed. In addition, coupling or directcoupling or communication connection between each displayed or discussedcomponent may be indirect coupling or communication connection,implemented through some interfaces, of the device or the units, and maybe electrical and mechanical or adopt other forms.

The units described as separate parts may or may not be physicallyseparated, and parts displayed as units may or may not be physicalunits, and namely may be located in the same place, or may also bedistributed to multiple network units. Part or all of the units may beselected to achieve the purpose of the solutions of the embodimentsaccording to a practical requirement.

In addition, each functional unit in each embodiment of the disclosuremay be integrated into a processing unit, each unit may also physicallyexist independently, and two or more than two units may also beintegrated into a unit.

When being realized in form of software functional unit and sold or usedas an independent product, the function may also be stored in acomputer-readable storage medium. Based on such an understanding, thetechnical solutions of the disclosure substantially or parts makingcontributions to the conventional art or part of the technical solutionsmay be embodied in form of software product, and the computer softwareproduct is stored in a storage medium, including a plurality ofinstructions configured to enable a computer device (which may be apersonal computer, a server, a network device or the like) to executeall or part of the operations of the method in each embodiment of thedisclosure. The abovementioned storage medium includes: various mediacapable of storing program codes such as a U disk, a mobile hard disk, aRead-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk oran optical disk.

The above is only the specific implementation mode of the disclosure andnot intended to limit the scope of protection of the disclosure. Anyvariations or replacements apparent to those skilled in the art withinthe technical scope disclosed by the disclosure shall fall within thescope of protection of the disclosure. Therefore, the scope ofprotection of the disclosure shall be subject to the scope of protectionof the claims.

1. A wireless communication method, comprising: determining, by aterminal device, a first transmission format for sending data to besent; and sending, by the terminal device according to the firsttransmission format, the data to be sent to a network device, whereinthe first transmission format comprises at least one of the followings:a first modulation manner, a first code rate, a first transport blocksize (TBS), a first modulation coding level, or a first physicalresource block (PRB) size, wherein determining, by the terminal device,the first transmission format for sending the data to be sent comprises:determining, by the terminal device, the first transmission formataccording to at least one of: pre-configured multiple transmissionformats; or a bearer of the data to be sent.
 2. The method of claim 1,wherein determining, by the terminal device, the first transmissionformat for sending the data to be sent comprises: determining, by theterminal device, the first transmission format according to the bearerof the data to be sent and a third correspondence, wherein the thirdcorrespondence is to indicate a correspondence between multipletransmission formats and multiple bearers.
 3. The method of claim 1,further comprising: receiving, by the terminal device, configurationinformation of the network device, wherein the configuration informationis to indicate at least one of the followings: the pre-configuredmultiple transmission formats; the pre-configured position of the uplinkavailable resource; the pre-configured size of the uplink availableresource; or the pre-configured reference code rate of the uplink data.4. The method of claim 3, wherein receiving, by the terminal device, theconfiguration information of the network device comprises: receiving, bythe terminal device, the configuration information sent by the networkdevice via Radio Resource Control (RRC) layer signaling, Media AccessControl (MAC) layer signaling or physical layer signaling.
 5. The methodof claim 1, wherein the method is used in grant free transmission.
 6. Aterminal device, comprising: a processor, configured to determine afirst transmission format for sending data to be sent; and atransceiver, configured to send the data to a network device accordingto the first transmission format, wherein the first transmission formatcomprises at least one of the followings: a first modulation manner, afirst code rate, a first transport block size (TBS), a first modulationcoding level, or a first physical resource block (PRB) size, wherein theprocessor is further configured to: determine the first transmissionformat according to at least one of: pre-configured multipletransmission formats, or a bearer of the data to be sent.
 7. Theterminal device of claim 6, wherein the processor is further configuredto: determine the first transmission format according to the bearer ofthe data to be sent and a third correspondence, wherein the thirdcorrespondence is to indicate a correspondence between multipletransmission formats and multiple bearers.
 8. The terminal device ofclaim 6, wherein the transceiver is further configured to: receiveconfiguration information of the network device, wherein theconfiguration information is to indicate at least one of the followings:the pre-configured multiple transmission formats; the pre-configuredposition of the uplink available resource; the pre-configured size ofthe uplink available resource; or the pre-configured reference code rateof the uplink data.
 9. The terminal device of claim 8, wherein thetransceiver is further configured to: receive the configurationinformation sent by the network device via Radio Resource Control (RRC)layer signaling, Media Access Control (MAC) layer signaling or physicallayer signaling.
 10. The terminal device of claim 6, wherein theterminal device is used in grant free transmission.
 11. A networkdevice, comprising: a processor, configured to determine a firsttransmission format for receiving data to be received; and atransceiver, configured to receive, according to the first transmissionformat, the data sent by a terminal device, wherein the firsttransmission format comprises at least one of the followings: a firstmodulation manner, a first code rate, a first transport block size(TBS), a first modulation coding level, or a first physical resourceblock (PRB) size.
 12. The network device of claim 11, wherein thetransceiver is further configured to: send configuration information, toenable a receiver to select a transmission format for transmittinguplink data, wherein the receiver comprises the terminal device, and theconfiguration information is to indicate at least one of the followings:pre-configured multiple transmission formats; a pre-configured positionof an uplink available resource; a pre-configured size of the uplinkavailable resource; or pre-configured reference code rate of the uplinkdata.
 13. The network device of claim 11, wherein the network device isused in grant free transmission.